<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="js/vue.js"></script>
    <style>
        .active{
            border:1px solid red;
            width: 100px;
            height: 100px;
        }
        .error{
            background-color: orange;
        }
        .test{
            color: blue;
        }
        .base{
            font-size: 28px;
        }
    </style>
</head>
<body>
    <div id="app">
        <div v-bind:class="[activeClass,errorClass,{test:isTest}]">测试样式</div>
        <div v-bind:class="arrClasses">测试样式</div>
        <div v-bind:class="objClasses">测试样式</div>
        <div class="base" v-bind:class="objClasses">测试样式</div>
        <button v-on:click="handle">切换</button>
    </div>
    <script>
        /* 
            样式绑定相关语法细节：
                1.对象绑定和数组绑定可以结合使用
                2.class绑定的值可以简化操作
                3.默认的class如何处理 :默认的class会保留
        */
        var vm = new Vue({
            el:"#app",
            data:{
                activeClass:'active',
                errorClass:'error',
                isTest:true,
                arrClasses:['active','error'],
                objClasses:{
                    active:true,
                    error:true
                }
            },
            methods:{
                handle:function(){
                    this.activeClass="";
                    this.isTest = '';
                    this.objClasses.error = false;
                }
            }
        })
    </script>
</body>
</html>